Injection tool



FIG. 1 is a top plan view of an embodiment of our design for an injection tool.

FIG. 2 is a bottom plan view thereof.

FIG. 3 is a right side elevation view thereof, the left side elevation view being a mirror image of the right side elevation view.

FIG. 4 is a front elevation view thereof; and,

FIG. 5 is a rear elevation view thereof.

The broken lines shown throughout these figures depict environmental subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for an injection tool, as shown and described. 